Attachment for tire-making machines



Nov. 8, 1927.

H. A. DENMIRE ATTACHMENT FOR TIRE MAKING MACHINES Filed Jan. 25. 1926 jl yvslvroal j #40040 14. .DE/v/ /PA i I m 2 ATTORNEY. v

v m- Illllllrmrlm of a diameter somewhat less a rotating core such chines,

; hand and is quite a laborious one,

Patented Nov. 8, 1927.-

UNITED STATES PTENT OFFICE.

nano'nn A.

DENMIBE, OF AKRON, OHIO, ASSIGNOR TO THE GENERAL TIRE AND RUB- BER COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

ATTACHMENT FOB TIRE-MAKING MACHINES.

Application filed January 25, 1926. Serial No. 83,506.

The present invention relates to the art of' manufacturing pneumatic automobile tires, and particularly to the placing of the fabric bands about the core upon which the tire is formed. a

In the manufacture of pneumatic tires it is customary to form the cord fabric which constitutes the plies of the carcass into bands than the diameter of the core and to apply the bands by stretching them over the core, the construction of the bands imparting the desired stretch to the fabric. The operation of applying the bands has largely been done by especially in the manufacture of larger tires, for the band is required not only to be stretched over the core but to be properly centered therewith. The centering of the band, in addition to placing it about the core, is a tedious and time-consuming operation.

The present invention vprovides an attachment for use with and in combination with as .found in all tire maand is designed to facilitate the placing of the band and respect to the core. The device shown is simple and inexpensive andmay be combined with'any standard tire making machine. a

One embodiment of the invention is shown and described herein, but it will be apparent that other forms may become within the scope of the invention, as it is not limited to the specific construction of this a plication;

Int edrawings:

Figure 1 is a side elevation of a'tire makin machine in combination with the improved fabric placing and centering device;

Figure 2 is a'plan thereof;

Figure 3 is a section on the line 3-3 of Fi re 1; Y

igure is a section on the line 4-4 of Figure 1;and

-igure5isadetail. 1

The tire machine is shown at 1 and the core at 2, the latter being carried upon a shaft 3 which, as usual in these machines, is adapted'to'be driven at slow speed for the application of the fabric and at fast speed for the shaping operations as is well known in the art.

the-top of the machine are Mounted upon h 5wh1ch are parallel two pairs of brackets the centering of it with designed which and at anangle oblique to the axis of the core, being secured to the top of the machine by bolts 6 which pass through slots 7 in the bases thereof so that the angular position of the brackets may be altered. These brackets are formed with vertical slots 8 and between the'brackets is located a plate 9 which is secured'in the brackets by bolts 10 passing through the vertical slots 8 and into lugs 11 secured on the plate. By means of the variousadjustments described, the angular position of the plate relative to the axis of the core may be adjusted both horizontally and vertically. As shown, the proper adjustment for the purposes to be accomplished secures an upward and backward inclination, the plate pointing toward the core in the direction of its rotation and to a point above'the cores- The end of the plate furthest removed from the core is provided with a bearing 12 vrides a movable bearing 14. The provision of the movable bearing at the location nearest the core prevents the accidental transfer of oil to the band. Mounted in the'bearings 12 and 14 is along, freely rotatable rod or shaft 15 which extends from the .bearing 12 to a position over the core. The rod is movable longitudinally by 'means of a lever & pivoted on the tire machine at 16 and pro- Vided with a link extending rearwardly and formed with 2. depending yoke 17 which is secured between two collars 18 on the rear end of the shaft. Collars 19 are secured to theshaft 15 on either side of the movable bearing 14. A pin 20 received in one ofa number of holes.21 furnishesa stop for limiting the forward movement of the shaft 15, and a pivoted latch 22 on a bracket 24 carried by the plate 9 may be swung down bebind the bearing 14 to afiord a temporary in rotation through the operation of the control pedals 26. he inclination of the shaft 15 and its position relative to the core will elevate thefabric band from the core slightthe device may be briefly tire builder applies the edge ly and draw it inwardly, this 0 eration beanda shaft slidably mounted in the brackets ing continued until the band of abric is cenand movable to a position over the core. tered upon the core. The latch 22 is then 7. In an apparatus for positioning a band released and the shaft 15 drawn backwardly 'of fabric on a core in the manufacture .of awayfrom the core by the lever 4 and the tires, a tire machine and a rotatable core operator can proceed with the shaping of'the thereon, aligned bearings upon the tire mafabric about the core. n w chine-,and a shaft in the bearings and inov- The apparatus shown and described is simable longitudinally to a position over the ple and easy in operation. It can be readily core, the shaft being directed at an oblique attached to or combined with any form of angle to the plane of the core. t1re making machine and will enable the 8. In an apparatus for positioning a band operator to quickly and accurately center the of fabric on a core in the manufacture of band of fabric upon the core. tiresa tire machine and a rotatable core What is claimed is:' thereon, aligned bearings upon the tire ma- 1. An apparatus for use in the manufacchine, and a shaft in the bearings and movture of tires, comprising a rotatable core, a able longitudinally to a position over the plate, adjustable supports for said plate so core, the shaft being directed upwardly and that it may be positioned at oblique an les at an oblique angle to the plane of the core. to the plane of the-core, a shaft slidfiily 9. In an apparatus for positioning a band mounted in the plate, and means to project of fabric on a core in the manufacture of the shaft over the core. tires, a tire machine and a rotatable core 2. An apparatus for shifting a band of thereon, aligned bearings upon the tire 'mafabric relative to a core, comprising a rotatchine, and a shaft in said bearings project-' able core, and a shaft projecting over the .ing over the core and directed at an core and mounted at a fixed oblique angular angle to'the plane thereof. relation with respect to the axis of the ,core, 10. In an apparatus for positioning a said shaft being adapted to elevate a .porband of'fabric on a core in the manufacture tion of the band of fa ric from the core and of tires, a tire machine and arotatable core shift it laterally thereon. thereon, aligned. bearings upon the tire ma- 3. An apparatus for shifting a'band of chine, and a shaft in said bearings projectfabric relative to a core, comprising a rotating over the core and directed upwardl able core, a shaft projecting over the core and at an oblique angle to the plane thereo and mounted at a fixed oblique angularrela- 11. In an apparatus for positioning a tion with respect to the axis of the core, band of fabric on a core in the manufacture said shaft being adapted to elevate a portion of tires, a tire machine, a rotatable core of the band of fabric from the core and shift thereon, a support upon the tire machine, it laterally thereon, and means to withdraw and a shaft carried by the support and movthe shaft'from the core. able to a position over the core and directed 4. An apparatus for shifting a band of at an oblique angle to the plane thereof." fabric relative toa core, comprising a rotat- 12. In an apparatus for positioning a able core, and a shaft movable longitudinally band of fabric on a core in the manufacture to a position overthe core, the shaft being of tires, a tire machine, a rotatable core angularly arranged with respect to the axis thereon, a support upon the tiremachine, of the core and directed in the direction of and a shaft carried by the support and mov-. its rotation. able to a position over the core and directed 5. In an apparatus for the manufacture upwardly and at an oblique angle to the- I of tires, a tire machine and a rotatable core plane thereof.

thereon, aguide plate, means for mounting 13. In an apparatus for positioning a the guide plate at an oblique angle to the plane of t e core and directed outwardl therefrom, and a shaft slidable lon itudina ly in the plate to a position over t, e core. chine, a longitudinally movable shaft in said 6. In an apparatus for the manufacture of bearings projecting over the core and d1- tires, a tire machine and a rotatable corerected at an oblique angle to the plane of 'd bearings being of tires, a tire machine and a rotatable core thereon, aligned bearings upon the tire mathereon, brackets angularly adjustable upon the core, the outer of sa1 the tire machine, a to various lnclined positions in the brackets,

guide plate adjustable movable with the shaft.

HAROLD A. DENMIRE.

so oblique band of fabric on a core in the manufacture 

